Acetylene-gas generator.



G. E. JGHNSON.

AGETYLENE GAS GENERATOR.

APPLIOATION FILED JULY 3, 1909.

htented. Apr. 19H).

2 SHEETS-SHEET 1v ANDREW a. swam c0, Pwmoumoswnvuzaawnsmuamu. a c

l Tl W??? A Fn a artisan raisin e GEORGE E. JGEINSON, 9F DES MOINES,IOWA.

ACETYLENE-GAS GENERATOR.

To all whom it may concern- Be it known that i, Gannon E. JOHNSON, acitizen of the United States, residing at Des Moines, in the county ofFolk and State of Iowa, have invented a certain new and usefulAcetylene-Gas Generator, of which the following a specification.

The objects of my invention are to providc an acetylene gas generator ofsimple, durable, and inexpensive construction, in which the amount ofwater delivered from the water tank to the generating chamber may beviewed by means of a sight teed device, .e that the operator mayreadily, quickly and easily adjust the flow to suit the requirements ofthe device.

A further object is to provide improved means for automaticallyseparating the ashes from the calcium carbid and for preventing the dustarising from the calcium cal-bid From entering the water supply pipe tothereby avoid the possibility of having said supply pipe clogged bymeans of said dust.

My invention consists in the construction, arrangement, and combinationoil the various parts of the device whereby the objects conten'iplatedare attained, as luneinatter more fully set forth, pointed out in myclaims, and illustrated in the accoumanying drawings, in which- Figure 1shows a vertical, central sectional. view of a generator embodying myinvention. Fig. 2 shows a top or plan view of the generating chamber ofthe device, one side of which is filled with calcium carbid and theother side empty. l ig. fl shows a vertical, central, sectional view ofthe generating chamber, taken on a line at rightangles to that of Fig.1; and at shows a detail, perspective view illustrating the grate screensupporting rings.

teterring to the accompanying drawings, I have used the referencenumeral 10 to indicate the cylindrical body of the generating chamber,and 11 to indicate the cylindrical body of the water and gas chamber,which latter is provided with a flange 12 to overlap the top oi thegenerating chamber and to receive a strip of packing material 1?; forforming a. tight joint. This l'lange 12 is preferably provided with lugs141- to receive pivoted bolts 15 which are connected Specification ofLetters Patent.

Application filed July 3, 1909.

Patented Apr. 5, 191%. Serial No. 505,820.

with the generating chamber for detachably and adjustably connecting thegas and water chamber with the generating chan'iber. In the. top of thegas and water chamber is a water compartment 16 which may be filledthrough the opening 17, and extended through the *ater chamber is a gassupply pipe 18. These parts just described are of ordinaryconst-ructioi'i and of themselves form no part of my present invention,but are illustrated and described herein for the purpose of showing thearrangement and combination of the other parts therewith.

Mounted within the generating chamber is a cylinder 19 having anoutwardly ex tended flange 20 at its top, designed to rest uponcushioning springs 21 which are supported on shoulders 22 on thegenerating chamber to permit said cylinder to have a slight up and downmovement relative to the generating chamber. Secured to the bottom ofthe cylinder 19 is a disk-shaped bottom 23 for the cylinder, inclineddownward ly and inwardly and having a substan tially oval opening 2% atits central portion. The cylinder 19 and the disk-shaped bottom 23 formthe chamber for receiving and holding calcium carbid. 7

Fixed to the 'undersuriace of the bottom 23 is a series of hooks 25, towhich the chains 26 are attached. These chains are designed to support aring 27 which is of a diameter slightly less than the interior of thegenerating chamber, and it is so mounted upon the chains that when thegenerator is shaken, the sides of the ring will strike against theadjacentside of the generating chamber. '1, his ring 27 is arranged tosupport a second similar ring 28 below it. This is done by means of aseries of bolts 29 passed throu h both rings. The lower ring isyieldingly held upwardly toward the upper ring by means of a series ofcont-ractible coil springs 30 attached to both rings, and the movementof these rings toward each other is limited by means of a series ofblocks 31 attached to both rings in position to engage each other. Fixedto the lower ring 28 is a screen grate 32, inclined downwardly andinwardly a its central. portion, the ar'angement and comliiination ofthe said parts being such that carbid contained within the carbidchamber will pass downwardly through the opening 2st upon the centralportion of the screen grate, and the bottom 23 will prevent any of saidcarbid from flowing outwardly over the edges of the screen grate, theopening 2% in the bottom 23 being arranged at or near the samehorizontalplane as the top of the screen grate, as clearly shown in Fig. 1. Inpractical operation with this part of the device, and assuming that thedevice is carried by an automobile or moving vehicle, obviously, thedevice will be subject to considerable shaking. This will result in theupper rin 2? 'requently striking upon the sides or the generatingchamber, and the lower ring being supported on the springs will alsomove up and down, thus causing the blocks 31 to strike together, so thatthe screen grate will be subjected to a series of shocks and jars thatwill cause the ashes thereon to sift through the grate screen. In someinstances, the motion given to the device by the moving vehicle to whichit is attached will cause the grate to move only in a horizontaldirection, and hence, it is important that the rings are so arrangedthat they will strike upon the sides of the generating chamber; and atother times, the motion given to the screen is up and down, and whenthis occurs, the rings will strike together and thus sift ashes throughthe screen grate. The bolts 29 limit the movement of the rings away fromeach other, and the blocks 31 limit the movement toward each other.

The water for use in generating gas is delivered in the mannerhereinafter described to point above the central portion of the grate,and T have provided means whereby the dust and line particles of carbidarising from the grate and the generating chamber will be )revented fromentering the water supply pipe and the gas chamber as follows: Mountedupon the upper portion of the cylinder 19 is an oblong plate 33 havingformed therein an oblong opening at its top, the sides of said openingbeing inclined downwardly and toward the center of the grate,

said sides being indicated by the numeral In the lower ends of saidsides, I have mounted a line screen 35 through which water may freelyflow, but which will prevent the passage of dust and line particles ofcarbid. This screen is arranged a short distance above the center of theopening in the bottom 28. By having the screen 35 made substantiallyoblong in shape, I provide a comparatively large surface over whichwater is distributed to come in contact with the carbid within thegenerating I water chamber. Mounted in the outer end of this pipe 36 isa needle valve 37 and a valve seat 88. Said pipe 36 communicates belowthe valve seat with a glass tube 39, which in turn communicates with apipe e0 leading to the interior of the gas and water chamber below thewater tank. This pipe l communicates with a pipe ll which is providedwith two branches l2 arranged with discharge openings above the endportions of the opening in the plate 33. By this arrangement, it isobvious that all of the water that is delivered into the generatingchamber must pass around the needle valve and through the glass tube 39,which, being on the exterior of the device, may be readily and easilyseen by the operator. In practical use with this portion of the device,the operator is enabled to very quickly adjust the generator forproducing gas in proper quantities, it being understood in thisconnection that in order to start the generation of gas in sufficientquantities, it is desirable to have a comparatively large amount ofwater delivered to the generating chamber in a short time; and after thegeneration has started, then the water should be delivered in measuredquantities suiiicient to maintain the generation at the proper point.

In my improved device, the operator may, when starting the generation ofthe gas, first open the needle valve comparatively wide and thus permitwater in large quantities to flow into the generating chamber until thegeneration of gas commences. Then he may readjust the needle valve untilthe water drops through the glass tube in the quantity desirable formaintaining the generation of in the proper amount. Any time that theoperator finds that the water is not being delivered in proper quantitya re-adjustment may be very quickly and easily made.

I claim as my invention:

1. In an acetylene gas generator, the combination of a receptacle, acylinder mounted within the receptacle, a bottom for said cylinderinclined downwardly and toward its center and having an opening in itscentral portion, a ring, chains connecting said ring with the bottom ofsaid cylinder, a screen grate carried by said ring, said parts being soarranged that when the receptacle is shaken, the sides of the ring maystrike upon the sides of the receptacle to sift material through thescreen grate.

2. In a device of the class described, the combination of a receptacle,a cylinder within the receptacle, a bottom for the cylinder inclineddownwardly and toward its center and having an opening in its centralportion, hooks carried by said bottom, chains connected with said hooks,a ring supported by said chains, a second ring below the first, headedbolts extended through said rings to limit their movement away from eachother, blocks connected with said rings to engage each other and limitthe movement of the rings toward each other. eentraetible springsconnected with the rings to normally hold them toward each other, and ascreen grate secured to the lower ring, Said parts 1 being so arrangedthat the rings may strike against the sidee of the said i'eeeptacle.

Des Moines, Iowa, June 16, 1909.

GEURGE E. JOHNSON. Witnessee Minimum B. GoLmznN, NELLIE M. TAYLOR.

